<?php

$server = new Swoole\Http\Server('127.0.0.1', 9501);

$server->on('Request',function($request,$response) {
    $response->header('Content-Type', 'text/html; charset=utf-8');
    $response->end('<h1>Hello Swoole. #' . rand(1000, 9999) . '</h1>');
});

$server->start();